Borderlands 2 ~39 Golden Keys Free
I entered all the codes in the link yesterday and got 39 keys, might be a few more or less depending on which you have applied in the past.
Wasn't sure whether to put in forums or as a deal, I guess it is a freebie, and past free key deals have been received well, so will depend on the mood of mods I guess.
Link includes PC / PS3 / Xbox360 keys.
What is a Golden Key you might ask?
The Golden Key is a special key in Borderlands 2 that unlocks a golden chest which gives you a very powerful and rare item(s). Golden keys can be obtained by pre-ordering Borderlands 2, registering for a SHiFT account in Borderlands 2, or redeeming SHiFT codes which are released randomly.
The linked site is a wiki, so keys are added from a number of people, so it will be largely up to date.